Mitsubishi 4DQ5 Service Manual Page 85
- Page / 120
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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6. Preheating system
Removal
and
installation
of
glow
plugs
(1) Before removing glow plugs from the engine, be
sure to disconnect battery terminals.
(2) Disconnect cable
(1) from
No.4
cylinder glow plug.
Loosen glow plug connection plate attaching
nut
(2) and remove connection plate (3).
'·Cable
2·Nut
3-Connection plate
402591
(3) Remove
all
glow plugs from the cylinder head.
Take out packings from glow plug installation holes.
(4) To install, follow the reverse
of
removal procedure.
7. Inspection and adjustment
7
-1
·Starter
(1) Inspection before disassembly
(a)
Checking the starting circuit for operation
With the starter in place, check
to
be sure that -
1)
The battery
is
in
good condition, with its cell
plates showing no evidence
of
"sulfation" or
any other faulty condition, and
is
in
fully
charged state.
2) The battery terminal connections are clean
and tight.
3) The starter terminal connections are tight.
4) The wires are securely connected to terminals,
and are free
of
any insulation stripping due to
fraying, there being no signs
of
grounding or
breaking.
5) The starter switch closes and opens the circuit
positively at each position.
-
81-
Do
not
jump into a conclusion that
th.e
starter
is
in trouble when the engine refuses
to
fire up
upon cranking: the engine could be
in
trouble.
(b) No-load test
If the starter
is
suspected
of
trouble, take it
down from the engine and run a no-load test
on it to find
out
if
it
is
really in trouble.
When removing the starter, be sure to have the
battery switch turned off.
Switch
-EB
I
I
-9
J8843
No·load test circuit
Here's how to carry out the no-load test: Form
a test circuit with a voltmeter and an ammeter,
as
shown, using a fully charged 24-volt battery;
close the switch to run the starter until its speed
rises to and above 4000 rpm; and then read the
voltmeter and ammeter when the starter
is
spin-
ning. The ammeter should show that the starter
is
drawing not more than 130 amperes, with the
voltmeter indicating at least
11
volts (at the speed
of
at least 4000 rpm);
if
not, estimate the cause
of
the trouble by consulting the troubleshooting
guide, which follows:
- SERVICE 1
- 1. Major 5
- GENERAL 5
- 1-2 Right-hand side view 6
- Longitudinal sectional view 7
- Transverse sectional view 8
- "til 9
- '1:l 10
- '0 10
- ~ 13500 11
- DISASSEMBLY 12
- (1) and disconnect injection 13
- (3) by loosening union 13
- (1) and remove 13
- (1) and oil ring (2) 17
- (b) Remove 18
- (f) Remove thermostat (5) 18
- Ii nder head 19
- (0.0020) 20
- Valve guides 21
- 'Valve springs 23
- Removing ridge 24
- 1.0. Remarks 25
- Pistons and piston rings 26
- (4) Piston 27
- (7) Piston pin bosses 28
- "c" and 29
- "c" 29
- ~rankpin 30
- (1) Journals 32
- 5393To.00059) 34
- (0.0012 36
- (0.00787) 36
- Camshaft 36
- W' 37
- +0.10 (hole) 38
- ",:e" 39
- (0.0020 40
- REASSEMBLY 41
- 1-Compression rings 42
- Driving 43
- Precombustion-chamber side 44
- (1) and two woodruff keys 45
- (1) with 47
- 48
- (lb-ft) 49
- CYLINDER 50
- ASSEMBLY 50
- (1) into the tappets 51
- I----------=~ 53
- -~-==II 53
- J.00059 54
- (NOTES] 55
- COOLING SYSTEM 56
- ± 2°C (169.7 ± 3.6°F) 56
- (1) Remove pump cover (2) 57
- Reassembly 59
- (1) and install 59
- Fuel circuit 60
- Priming the fuel system 61
- (1) Bringing 62
- (1) Filter 63
- ®--_" 64
- Leak-off pipe packing 65
- 01 this 66
- (3) Seating tightness 67
- 6. Fuel feed pump 68
- Priming 70
- 600 injection-pump rpm 71
- 1.S kg/cm 71
- Tabulated data 73
- (IT) mounted on control 74
- 1. General 75
- Starter 76
- ± 0.3 V 78
- _..JI~'--_Fuse 79
- Dz permits the 80
- (1), and remove starter 81
- 7. Inspection and adjustment 85
- Ammeter 87
- -"' 88
- Alternator 89
- (1) Starting the engine 91
- (f) Fuel injection 91
- (1) Test condition 91
- 760 - 11.4 92
- -fJiGQ' 93
- ( 1.73) 95
- ± 2.21) 95
- I Warpage on 96
- @' 99
- 'U 100
- ""' 101
- "" 102
- (0.130~0.154) 103
- I Replace 104
- '" 105
- SEALANT APPLICATION DATA 106
- Important bolts and nuts 107
- General bolts and 108
- "t 109
- ~"~i 110
- 2·lnstaller 111
- 3-Cran kease 111
- 1-Rod 3-Camshaft bushing 112
- 2-Adaptor 112
- TROUBLESHOOTING 114
- .::;;"' 115
- - - - 0 116
- 0 - - 116
- - 0 - - 116
- -" 117
- '85 120
- Printed in Japan 120
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